a young woman’s collection of clothes and household articles, kept in preparation for her marriage—UK, 1835?—refers to the (notional?) receptacle where those clothes and household articles are supposed to be kept
a person or thing that is insignificant or contemptible—1910—originally (1900): a type of small high-velocity shell, with reference to the high-pitched sound of its discharge and flight
smartly dressed—from the verb ‘fig out/up’, meaning ‘to smarten up’—this verb is probably an alteration of the verb ‘feague’, of uncertain origin, meaning ‘to make (a horse) lively’
a difficult, uncooperative or unsociable person—UK, 1829—from French ‘mauvais coucheur’, literally ‘bad bedfellow’, with original allusion to a person whom a traveller had to share a bed with when stopping over at an inn
also ‘to be all thumbs’—to be extremely clumsy (i.e., lacking in manual dexterity)—19th century—variants of the original phrase ‘each finger is a thumb’, already proverbial in the mid-16th century
UK, 1941—a fighter pilot in the Royal Air Force; also used by the military land forces of any member of the R.A.F.—originally referred to WWII advertisements for Brylcreem hair cream, featuring a fighter pilot
a married woman living apart from her husband (18th century)—originally (16th century) an unmarried woman who has borne an illegitimate child—alludes to a bed of grass as a typical place for illicit sexual intercourse
UK—anything which discourages or inhibits sexual activity—originally (1943, British military slang): the sturdy, practical and unattractive underwear issued to female service personnel
expresses indignation, disbelief or amazement—USA, 1818—expanded form of the exclamation ‘ye gods’—perhaps a reference to the miracle of the loaves and fishes fed to the five thousand in the gospel of Matthew